JPH07249190A - Disk recording and reproducing device for travelling object - Google Patents

Abstract

PURPOSE:To obtain a disk recording and reproducing device for a travelling object which is capable of smoothly executing a map information scroll operation at high speed and which is suitable for realizing a navigation device with a 'learning function' as against a route where the navigation operation is executed once. CONSTITUTION:A control means 5 which selects map information from an information recording medium based on the operation of a scroll key which designates the present position of the travelling object or a map information display area displayed in CRT 10 so as to reproduce it and also generates control information concerning the selected map information. Then, map information is selected from the reproduction exclusive area of a hybrid MD 17 based on the present position of a self vehicle or the operation of the scroll key so as to reproduce it, reproduced map information is temporarily sotred in RAM 8, it is recorded by a prescribed format adding control information of map information in the recording possible area of the hybrid MD 17 and map information is reproduced based on control information when the reproduction of the map information is designated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information signal recording / reproducing apparatus for recording / reproducing various information signals required for navigation of a mobile body on an information recording medium such as a disc.

[0002]

2. Description of the Related Art In recent years, in a typical automobile as a moving body, a device for providing vehicle information, a navigation function, a location function, etc. by a display such as a cathode ray tube (CRT) or a liquid crystal display device has become popular. There is a tendency. The navigation function is a function of instructing the destination on the map displayed on the screen of the display device in the direction in which the currently running vehicle should travel, and the location function is currently running. This is a function indicating which position on the map displayed on the screen the vehicle is traveling.

A conventional navigation device that executes such a function will be described. FIG. 17 is a block circuit diagram of a conventional disk reproducing device for a mobile navigation device. In FIG. 17, reference numeral 1 is a control unit, which includes various interface (I / O) circuits 2, 3, and 4,
CPU5 and CRT controller (hereinafter "CRT.C")
7) and the like are operated by being supplied with a stabilized power supply from a vehicle-mounted battery via a constant voltage circuit to control various devices.

Reference numeral 2 denotes a first interface (I / O) circuit, which is a navigation for guiding the traveling of the vehicle, traffic information for receiving road conditions, a car telephone, an air conditioner for indoor air conditioning, a tape as an audiovisual source, Radio, TV, CD
It is connected to a key switch group 9 for selecting each mode such as. In addition, the first interface circuit 2 receives a radio wave from an artificial satellite via an antenna, and can confirm or determine the current position and moving speed of an automobile by using GPS (Gl
Obal Positioning System) Device 11 and a geomagnetic detector fixed to the vehicle detect the geomagnetism by decomposing it into a vehicle traveling direction component and its vertical component, and output a signal corresponding to this as the vehicle traveling direction θ. Direction sensor 12
And are connected.

Reference numeral 3 is a second interface (I / O) circuit, which is a distance for outputting a pulse signal proportional to the rotational speed of the wheel by using a vehicle speed sensor for detecting the rotation of the wheel by an electromagnetic pickup, a reed switch or the like. The sensor 13 is connected.

Reference numeral 4 denotes a third interface (I / O) circuit, which is a television / radio tuner 14 and a tape deck 1.
5, video / audio equipment such as a CD deck 23 is connected. The CD deck 23 has a CD-R which is a map storage means.
An OM 24 is provided, and when selecting the navigation function, it is possible to read out various map information and diagram data and display them on the CRT 10.

In the CD-ROM 24, map information such as a national map, a local map, a regional map, and a district map is recorded as vector data. Of these, three types of area maps are prepared: wide area, standard, and detailed with different scales, and these area map information includes common areas. Further, in the CD-ROM 24, a line map connecting points on the district map, for example, a line map showing roads, rivers, bridges, etc. is decomposed into line map data and recorded, and characters and symbols are also recorded. Character data, service data such as hotels and golf courses as service symbols are also recorded. And the road,
For specific items such as rivers and bridges, a color palette is recorded with a plurality of color codes in order to display them in various colors. In addition to this color code, it has a plurality of memory tables in which a large number of color palettes are recorded with color codes so that the item can be displayed in other colors. In addition, the screen is shadowed.
The dot data for applying the shadow and the dot data for applying the shadow to the area where the icon, which is the touch panel, is displayed on the screen are recorded.

Reference numeral 5 denotes a CPU for controlling the operation of the video / audio equipment according to the mode selected by the key switch group 9 and for reading the map information or the like from the CD-ROM 24 and displaying it on the screen of the CRT 10. The control signal is sent to the CRT. Give to C7. In addition, the interrupt circuit (hereinafter,
The pulse signal from the distance sensor 13, the GPS signal from the GPS device 11 and the digital signals of the X and Y components from the azimuth sensor 12 are received via 5 a (referred to as “IRT”) and arithmetic processing is executed to obtain the travel route information. A certain traveling locus and current position are obtained and a display signal is output.

Reference numeral 6 denotes a RAM for temporary storage, which is shown in FIG.
As shown in the schematic diagram of FIG. 3, the data read from the CD-ROM 24 is temporarily stored in the process of the CPU 5 performing the arithmetic processing. Then, when the map information is read out, the line drawing data is also read out, and when the desired map is selected, the data is taken out so that various line drawings are superposed on the map. It should be noted that the coordinates (X
(0, Y0) is stored in the center of the screen, and when this map information and the current position data are read out, as shown in FIG. 18 (e), C displaying the map information is displayed.
The current position mark M is displayed at the center of the screen of the RT10. Here, the dotted line in FIG. 18E represents the area actually displayed on the CRT 10.
Therefore, the RAM 6 can store up to 4 units of map information. Further, the RAM 6 is a CRT.
In order to display the traveling locus on the screen of 10, a memory table for storing position data is provided.
It has a plurality of endless memory tables corresponding to the map information of the different scales recorded in No. 4.

Next, the plurality of memory tables will be described in detail. In FIG. 19, MA, MB, MC
Is a memory table, which is a locus memory for storing current position data, and includes three types of map screens T with different scales.
It corresponds to A, TB, and TC, respectively. TA is a wide area map in a specific area, TB is a standard map obtained by enlarging the common area F of the wide area map TA at a predetermined magnification, and TC is a detailed map obtained by enlarging the common area F of the standard map TB. MA is a memory table corresponding to the wide area map TA, M
B is a memory table corresponding to the standard map TB, and MC is a memory table corresponding to the detailed map TC.

CRT. The C7 receives a command for output of a display signal from the CPU 5, stores the traveling route information in the RAM 8 for display, and CR stores the stored map data, character data, traveling route information and the like.
It outputs a video signal for displaying at T10 and a sync signal. The CPU 5 stores the map information corresponding to one designated scale among the enlarged, standard and detailed map information stored in the CD-ROM 24 and the traveling locus information corresponding to this map information in the memory table of the RAM 6. It is read out from and is displayed so that the traveling locus is overlaid on the map.

In addition to additional information such as map numbers and types of scales, the display RAM 8 stores pattern data for displaying operation keys for driving various devices as touch switches on the screen. As the pattern data, the current position mark M (see FIG. 18 (e)) displayed as a triangle on the screen of the CRT 10 and the trajectory which is the first mode for displaying the traveling trajectory as a plurality of continuous points (dots) A display pattern and a locus non-display pattern, which is a second mode for erasing the displayed locus from the screen, are stored as a switching unit that gives a switching signal to the CPU 5, that is, a touch switch. In addition, a scroll key pattern that constitutes a map moving means for arbitrarily moving the map displayed on the screen, and the current position mark M displayed on the screen.
A correction pattern, which is a correction position mark display means for correcting the position of, and a return pattern, which is a map return means for returning the moved map to the original position, are stored. Further, enlargement / reduction patterns designating the scale of the map are also stored.

Reference numeral 10 denotes a CRT which is a display device, and C
RT. The map of the specific area, the traveling route, the current position, etc. are displayed in color by the video signal and the synchronizing signal from C7. Further, various operation keys of the touch switch are displayed in a predetermined touch area, and further, by selecting and pressing a predetermined key of the key switch group 9, the TV / radio tuner 14 is turned on to turn on the TV. Images can also be displayed.

Next, the operation of the conventional navigation device constructed as above will be described. When the navigation mode is selected by the key switch group 9 at the start of driving of the automobile, the map information including the position (X0, Y0) of the starting point is read from the CD-ROM 24, and CR is read.
Displayed at T10. When the automobile starts running, a pulse signal is output from the distance sensor 13 and given to the CPU 5 via the IRT 5a. The CPU 5 multiplies the number of pulses by a predetermined numerical value to obtain the traveling distance D for each fixed time.

Next, the traveling direction θ from the direction sensor 12
And the traveling distance D, the position of the vehicle on the two-dimensional coordinates is obtained by the following equation. ΔX = D · cos θ ΔY = D · sin θ

Next, the calculated coordinates (ΔX, ΔY)
And the coordinates (X0, Y0) of the starting point, the current position (X, Y) is obtained by the following equation. Xn + 1 ← Xn + ΔX Yn + 1 ← Yn + ΔY As a result, the traveling distance to the current position, which changes moment by moment,
The latitude and longitude are fixed every certain time.

Since an error occurs only with the data from the distance sensor 13 and the direction sensor 12, the GPS device 11
The arithmetic processing for executing the GPS processing is executed in response to the GPS signal from the vehicle, and the absolute value of the latitude and longitude is determined at regular intervals, so that the travel route information is corrected. The traveling route information such as the traveling distance and the traveling locus is sequentially stored in the R for temporary storage.
It is stored in AM6.

According to the traveling route information which is sequentially stored in the RAM 6 for temporary storage, the screen shown in FIG.
As shown in 0, the traveling locus of the automobile is displayed by a plurality of dots, and the driver can accurately recognize the traveling route of the own vehicle. Even when the displayed map is sequentially switched to the adjacent map while the vehicle is traveling, the traveling route information is always stored, so that it is automatically displayed on the adjacent map.

[0019]

The conventional navigation device is configured as described above, but the operation of moving the map displayed on the CRT 10 in any direction (hereinafter,
When performing a "scroll operation", FIG.
When the area indicated by the dotted line, that is, the map area displayed on the CRT 10 is out of the map area stored in the RAM 6, a command is sent from the CPU 5 to the CD deck 23, and the CD deck 23 is adjacent to the map. CD-RO information
It is read from M24 and stored in RAM6. At this time,
The read operation requires some time, during which the CRT10
Since the scrolling operation of the map information displayed in is stopped, the user is uncomfortable.

Generally, when a navigation operation is performed, a navigation operation may be performed a plurality of times for a certain specific route (for example, a forward drive and a return drive of a drive). Even in such a case, a scroll operation is performed. No map information is smoothly displayed on the CRT 10, and there is no navigation device provided with a function capable of performing a smooth scrolling operation from the second time on a route which has once performed a navigation operation.

The present invention has been made in order to solve the above-mentioned problems. The scrolling operation of map information is performed at high speed and smoothly, and the navigation operation is performed again for the route which has been once subjected to the navigation operation. In this case, it is an object of the invention to obtain a disk recording / reproducing device for a moving body, which is suitable for realizing a navigation device capable of performing a faster and smoother scrolling operation.

[0022]

According to a first aspect of the present invention, there is provided a disk recording / reproducing apparatus for a mobile body, which records / reproduces an information signal by using an information recording medium having both a reproduction-only area and a recordable / reproducible area. The map information is selected from the information recording medium based on the recording / reproducing means for performing, the storage means for storing the information signal reproduced from the information recording medium, and the display designating means for the map information to be displayed on the current position of the mobile body or the information display means. And a control means for reproducing management information and generating management information about the selected map information.

According to a second aspect of the present invention, there is provided a disk recording / reproducing apparatus for a moving body, which comprises a recording / reproducing means for recording / reproducing an information signal by using an information recording medium having both a reproduction-only area and a recordable / reproducible area. The map information and related service information are selected from the information recording medium based on the storage means for storing the information signal reproduced from the information recording medium and the display designating means for the map information displayed on the current position of the mobile body or the information display means. And control means for reproducing and generating management information relating to the selected map information and service information.

According to a third aspect of the present invention, there is provided a disk recording / reproducing apparatus for a moving body, which comprises recording / reproducing means for recording / reproducing an information signal by using an information recording medium having both a read-only area and a recordable / reproducible area. A storage means for storing the information signal reproduced from the information recording medium, a display position specifying means for the current position and traveling direction of the moving body or a map information displayed on the information display means, and a moving direction of the display area specified by the display specifying means. The present invention further comprises control means for selecting and reproducing map information from an information recording medium and generating management information relating to the selected map information.

According to a fourth aspect of the present invention, there is provided a disk recording / reproducing device for a moving body, which comprises recording / reproducing means for recording / reproducing an information signal using an information recording medium having both a reproduction-only area and a recordable / reproducible area. Map information selected from the information recording medium based on the storage means for storing the information signal reproduced from the information recording medium and the display designating means of the map information displayed on the current position of the moving body or the information display means, and the map selected in the past It further comprises control means for further selecting and reproducing map information by referring to the management information concerning the information, and generating management information concerning the selected map information.

According to another aspect of the present invention, there is provided a disk recording / reproducing apparatus for a moving body, which reproduces information signals by using the first information recording medium, and records information signals by using the second information recording medium. And a recording / reproducing means for reproducing.

According to a sixth aspect of the present invention, there is provided a disk recording / reproducing apparatus for a mobile body, which has a reproducing means for reproducing an information signal by using an information recording medium, and is recorded in advance on the information recording medium in a predetermined format including management information. And a control means for controlling the reproduction of the information signal based on the management information.

[0028]

According to another aspect of the present invention, there is provided a disk recording / reproducing apparatus for a movable body, wherein a current position of the movable body or information display means is provided from a reproduction-only area of an information recording medium having both a reproduction-only area and a recordable / reproducible area. The map information is selected and reproduced based on the display designating means of the map information to be displayed on the display device, the reproduced map information is temporarily stored in the storage device, and the map information stored in the storage device is stored in the recordable area of the information recording medium. Record in a predetermined format that contains management information, and if playback of the map information that is recorded in a predetermined format that contains management information is specified, play back the map information based on the management information and play back only the information recording medium. A quicker reproduction operation is realized as compared with the case of reproducing the same map information recorded in the area in the conventional manner.

According to a second aspect of the present invention, there is provided a disk recording / reproducing apparatus for a moving body from a reproduction-only area of an information recording medium having a reproduction-only area and a recordable / reproducible area to a current position of the moving body or information display means. The map information and related service information are selected and reproduced based on the display designating means of the map information to be displayed, the reproduced map information and service information are temporarily stored in the storage means, and the map information and service information stored in the storage means Is recorded in a recordable area of the information recording medium in a predetermined format including management information, and when reproduction of the map information recorded in a predetermined format including management information is designated, the map information is recorded based on the management information. It is possible to realize a quicker reproduction operation as compared with the case of reproducing and reproducing the map information of the same content recorded in the reproduction-only area of the information recording medium in the conventional format. , If reproduction of service information is specified during reproduction of map information recorded in a prescribed format, reproduction of map information is interrupted and reproduction of service information is performed based on management information, and reproduction only of information recording medium is performed. A faster reproducing operation is realized as compared with the case of reproducing the service information of the same content recorded in the area in the conventional manner.

According to a third aspect of the present invention, there is provided a disk recording / reproducing apparatus for a moving body, from a reproduction-only area of an information recording medium having a reproduction-only area and a recordable / reproducible area, the current position and traveling direction of the moving body or information. The map information to be displayed on the display means is selected and reproduced based on the display designating means of the map information and the moving direction of the display area designated by the display designating means, and the reproduced map information is temporarily stored in the storing means, and the storing means. The map information stored in the recordable area of the information recording medium is recorded in a predetermined format including the management information, and the management information is recorded when reproduction of the map information recorded in the predetermined format including the management information is designated. Based on this, the map information is reproduced, and a faster reproduction operation is realized as compared with the case where the map information of the same content recorded in the conventional format in the reproduction-only area of the information recording medium is reproduced.

According to the fourth aspect of the present invention, there is provided a disk recording / reproducing apparatus for a mobile body, which selects map information based on a current position of the mobile body or display designation means of the map information displayed on the information display means, and records the information in the past. The map information is further selected from the read-only area of the information recording medium having the read-only area and the record-playable area by referring to the management information relating to the map information recorded in the recordable area of the medium, and is played back. The stored map information is temporarily stored in the storage means, the map information stored in the storage means is recorded in a recordable area of the information recording medium in a predetermined format including management information, and is recorded in a predetermined format including management information. When the reproduction of the map information is designated, the map information is reproduced based on the management information, and the map information of the same content recorded in the conventional format in the reproduction-only area of the information recording medium is reproduced. To achieve rapid reproduction operation as compared to the case.

According to a fifth aspect of the present invention, there is provided a disk recording / reproducing apparatus for a mobile object, which is based on the present position of the mobile object from the first information recording medium or a map designating means for displaying the map information displayed on the information displaying means. Information signal is selected and reproduced, the reproduced information signal is temporarily stored in the storage means, and the information signal stored in the storage means is recorded in the second information recording medium in a predetermined format including the management information. When the reproduction of the information signal recorded in a predetermined format including is reproduced, the information signal is reproduced based on the management information and the map of the same content recorded in the conventional method on the first information recording medium. A faster playback operation is realized compared to the case of playing back information.

According to another aspect of the present invention, there is provided a disk recording / reproducing apparatus for a mobile body, wherein reproduction of an information signal such as map information recorded on an information recording medium in advance in a predetermined format including management information is designated. The information signal is reproduced based on the management information, and a quick reproduction operation is realized as compared with the case where the same map information recorded in the conventional format on the information recording medium is reproduced.

[0034]

【Example】

Example 1. First Embodiment FIG. 1 is a block circuit diagram of an information signal recording / reproducing apparatus for mobile body navigation according to a first embodiment of the present invention. In the figure, 1 to 15 are the same as those in the conventional example shown in FIG. 17, and the functional operation of each is substantially as described above, and a detailed description thereof will be omitted.

While the conventional apparatus is constructed on the basis of a read-only memory called a CD-ROM 24, in the first embodiment, as a recordable information recording medium, for example, Radio Technology, March 1993 p. 165-p. Mini Disc (hereinafter referred to as “MD”) disclosed in “All about Sony MD (Mini Disc) Technology” in 180.
Is used). In the figure, 16 is an MD deck, and this MD deck 16 is equipped with a RAM 16a capable of temporarily storing the information read from the disc, and the MD deck 1 according to a control command of the CPU 5.
The CPU 16b for controlling the CPU 6 is provided.

The MD is an easy-to-handle optical disc having a diameter of only 64 mm and stored in a cartridge. M
The D is a read-only type like the conventional CD-ROM 24, an erasable type capable of recording and reproducing many times by a magneto-optical recording system, and further, a read-only area is repeatedly recorded on one disk. A hybrid type (hereinafter referred to as "hybrid MD") in which reproducible areas coexist.
There is). In the first embodiment, the hybrid MD
I am using 17.

FIG. 2 is a perspective view showing the structure of the hybrid MD 17 used in the first embodiment, which includes A1 area 19 and A2.
The area 20 is a read-only area (ROM area),
Map information is recorded in the A1 area 19, and service information such as tourist guide information is recorded in the A2 area 20. The B1 area 21 and the B2 area 22 are areas in which recording and reproduction are possible (RAM areas), arbitrary information is recorded in the B2 area 22, and the B1 area 21 is called a user TOC (Table Of Contents) area. Address information of arbitrary information recorded in the area 22 is recorded.

Reference numeral 18 denotes a fourth interface circuit (I /
The operation of the MD deck 16 is controlled by sending a control command from the CPU 5 to the CPU 16b via the fourth interface circuit 18.

Next, the operation of the first embodiment will be described. Until the normal navigation operation and the location operation are performed by reading the map information from the hybrid MD 17 which is the map storage means and displaying the traveling locus of the own vehicle calculated from the detection signal of the GPS device 11 or the like on the map. Since the operation of is the same as that of the conventional technique, description thereof will be omitted.

The feature of the first embodiment is that, for example, when the map information is scrolled by the scroll key pattern included in the key switch group 9 in order to confirm the route to be driven by the user, the scrolling operation is fast and smooth. To do.

As described above, in order to perform the scroll operation at high speed and smoothly, first, the map information recorded in the A1 area 19 is read and temporarily stored in the RAM 16a, and this map information is recorded in the B2 area 22. It is necessary to perform an operation (hereinafter, this operation is referred to as a "relocation recording operation"). FIG. 3 is a diagram schematically showing the map information recorded in the A1 area 19, and the frames numbered from 1 to 36 represent the map information. For example, an area including the S point is shown. The represented map information indicates that it is the map information 8.

In the following, assuming a case where the area on the map shown in FIG. 3 is moved from the point S to the point T through the route shown by the solid line in the figure, first, the normal navigation operation for this route is performed. The operation when the rearrangement recording operation is performed while performing the above will be described.

FIG. 4 is a diagram showing the operation timing of the rearrangement recording operation. FIG. 4A shows the timing of reading the map information from the A1 area 19, and FIG. 4B shows the timing of displaying the map information on the CRT 10. FIG. 6C shows the timing of recording the map information in the B2 area 22. Less than,
The rearrangement recording operation will be described in detail with reference to FIG.

First, when the key switch group 9 is designated to perform the rearrangement recording operation for the route for the navigation operation from now on, the current position S is detected by the same method as in the conventional example, and the CPU 5 rearranges the CPU 16b. Send control commands to record. Based on the control command sent, the CPU 16b causes the MD deck 16 to send map information 8 including the current position S and map information adjacent thereto (hereinafter referred to as "adjacent map information") 1, 2, 3,
7, 9, 13, 14 and 15, that is, a total of 9 pieces of map information are read from the A1 area 19 and temporarily stored in the RAM 16a (time 0 to 1).

FIG. 5 is a schematic diagram for explaining a method of selecting adjacent map information in the CPU 16b,
In the figure, the frames numbered 1 to 36 represent the same map information as in FIG. 3, and the portion surrounded by the bold line in FIG. 3A is selected by the CPU 16b as adjacent map information of the map information 8. The map information stored in the RAM 16a during the time 0 to 1 is shown. RAM in this way
The map information stored in 16a is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the display of the map information is started on the CRT 10 under the control of the CPU 5 (time 2).

The map information displayed on the CRT 10 is within the range shown by the dotted line in FIG. 3 at time 1, but the position of the own vehicle moves and the map display area scrolls. Map information 8 and 14 as time passes
It moves to the area that spans (time 2 to 10). At this time, even if the display range on the CRT 10 moves to an area that extends over the map information 8 and 14, the map information 14 is already in the RAM 6
Since it has been transferred to, the scroll operation does not stop.

During this time, the MD deck 16 is
The RAM area of the hybrid MD 17 is accessed under the control of the U16b (time 1 to 3), and the RAM is read and read earlier.
The map information temporarily stored in 16a is recorded in the B2 area 22 as a map information block (time 3 to 4). The map information block includes the map information block management information generated by the CPU 16b. . When recording of the map information block is completed at time 4, the MD deck 16 immediately outputs the hybrid MD1 under the control of the CPU 16b.
The ROM area 7 is accessed and waits (time 5).

When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 6) as the position of the vehicle moves, the scrolling operation proceeds (FIG. 5).
As shown in (b), eight pieces of map information of map information 7, 8, 9, 13, 15, 19, 20 and 21 are selected by the CPU 16b as the adjacent map information of the map information 14, and the MD is controlled by the CPU 16b. The deck 16 reads the map information 14 and these eight pieces of adjacent map information, that is, the total nine pieces of map information from the A1 area 19 and temporarily stores them in the RAM 16a (time 6 to 7). The map information stored in the RAM 16a is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, but at this time, the map information 7, 8, 9, 13, 14 and 15 already transferred to the RAM 6 is not transferred. Only the map information 19, 20 and 21 are newly transferred. In this way, the map information 7, 8, 9, 13, 14, 15, 19, 20 and 2 is stored in the RAM 6.
1 is stored and the map information is continuously displayed on the CRT 10 (time 10 to 16).

During this time, the MD deck 16 is
Under the control of 16b, the RAM area of the hybrid MD 17 is accessed (time 7 to 8), and the RAM is read and read previously.
The map information temporarily stored in 16a is recorded in the B2 area 22 as a map information block (time 8-9), and the map information block management information is included in this map information block. When the recording of the map information block is completed at time 9, the MD deck 16 immediately accesses the ROM area of the hybrid MD 17 and waits under the control of the CPU 16b (time 11).

Thereafter, similarly, the rearrangement recording operation is continued in parallel with the normal navigation operation. The map information read from the A1 area 19 at the times 12 to 13, the times 18 to 19, the times 24 to 25, and the times 30 to 31 are shown in FIGS. 5C, 5D, 5E, and 5F, respectively.
It is shown in the part surrounded by the thick line.

Eventually, the scroll operation proceeds, and CR
When the center of the display range of T10 moves to the boundary between the map information 23 and 29 (time 36), as shown in FIG.
Eight pieces of map information of 24, 28, 30, 34, 35 and 36 are selected by the CPU 16b, and the MD deck 16 which has been waiting by accessing the ROM area of the hybrid MD 17 at the time 35 under the control of the CPU 16b is the map information. 29 and these eight pieces of adjacent map information, that is, a total of nine pieces of map information are read from the A1 area 19 and temporarily stored in the RAM 16a (time 38 to 39). The map information stored in the RAM 16a is immediately stored in the RAM according to the transfer instruction of the CPU 5.
6, but the map information 22, 23, 24, 28, 29 and 30 already transferred to the RAM 6 is not transferred at this time, and the map information 3 is newly transferred.
Only 4, 35 and 36. In this way, RA
Map information 22, 23, 24, 28, 29, 30, in M6
Although 34, 35 and 36 are stored and the map information display on the CRT 10 is continued, when the position of the own vehicle moves and stops at the T point, and the center of the display range of the CRT 10 moves to the T point, the map information is displayed. Scroll operation stops (time 4
0).

During this time, the MD deck 16 accesses the RAM area of the hybrid MD 17 (from time 37 onward).
38), the map information previously read and temporarily stored in the RAM 16a is recorded in the B2 area 22 as a map information block, and this map information block includes map information block management information (time 38 to 39). . Time 40
When the map information scrolling operation is stopped and the stop of the rearrangement recording operation is designated by the key switch group 9,
Under the control of U16b, following the previously recorded map information block group, management information related to this map information block group (hereinafter referred to as "relocation recording block management information") is recorded in the B2 area 22 and TOC information regarding the arrangement recording block is recorded in the B1 area 21,
The rearrangement recording operation ends.

Here, the TOC recorded in the B1 area 21
The configuration of the information and the map information block and the rearrangement recording block recorded in the B2 area will be described in detail. FIG. 6 is a schematic diagram for explaining a map information block recorded in the B2 area. FIGS. 6A and 6B are examples of the recording format of the map information block and the map information block management information, respectively. It is shown. As shown in FIG. 10A, the map information block is composed of a plurality of map information selected by the CPU 16b during the relocation recording operation and the map information block management information. In this map information block management information, for example, as shown in (b) of the figure, the map information block number, the number of map information constituting the map information block, and the position where the map information is recorded in the A1 area are shown. The address information indicating the address information, the address information indicating at which position in the B2 area the map information is recorded, the size of the map information, and the like are recorded.

Several map information blocks having the format shown in FIG. 6A are recorded, and constitute a rearrangement recording block together with the rearrangement recording block management information. Figure 7
6A and 6B are schematic diagrams for explaining a rearrangement recording block recorded in the B2 area. FIGS. 9A and 9B are recording format examples of the rearrangement recording block and the rearrangement recording block management information, respectively. It is shown. When the stop of the rearrangement recording operation is designated by the key switch group 9, the rearrangement recording block management information is recorded in the B2 area 22 following the map information block group recorded until then, as shown in FIG. The relocation recording block management information is recorded with the relocation recording block number, the number of map information blocks constituting the relocation recording block, and the map information block, for example, as shown in FIG. Address information indicating the created start position, the size of the map information block, and the like are recorded.

When the stop of the rearrangement recording operation is designated by the key switch group 9 and the rearrangement recording block management information is recorded, the TOC information regarding the rearrangement recording block is subsequently recorded in the B1 area 21. FIG. 8 illustrates the TOC information regarding the rearrangement recording block. FIGS. 8A and 8B show the TOC information recorded in the B1 area 21 and the rearrangement recording recorded in the B2 area 22, respectively. It is a schematic diagram showing the recording format example of a block. As shown in (a) of the figure, as the TOC information regarding the relocation recording block, for example, the program number and the address information indicating the head position where the relocation recording block management information is recorded are recorded in the B1 area 21, and It is used for reading the rearrangement recording block recorded in the B2 area 22 with the configuration as shown in b).

Next, the B2 area 22 is processed by the rearrangement recording operation.
The operation of reproducing the rearranged recording block recorded in (1) will be described. FIG. 9 is a timing chart showing the operation timing of the reproduction operation of the rearranged recording block. The figure (a) shows the timing which reads map information from the B2 area 22, and the figure (b) shows the timing which displays map information on CRT10. Based on the figure, the operation when reproducing the rearrangement recording block in which the route from the point S to the point T in FIG. 3 is recorded will be described.

First, when the reproduction of the rearranged recording block is designated by the key switch group 9, the CPU 5 causes the C
A control command is sent to the PU 16b to reproduce the rearranged recording block, and the CPU 16b follows the control command to execute M
The TOC information in the B1 area 21 is read by the D deck 16. Based on the read TOC information, the CPU 16
Under the control of b, the MD deck 16 reads the rearranged recording block management information from the B2 area 22.

Relocation recording blocks are reproduced on the basis of the relocation recording block management information thus read. First, the map information block management information in the first map information block is read from the B2 area 22 based on the rearrangement recording block management information, and the MD deck 16 is controlled by the CPU 16b based on this map information block management information. Is the map information 1 from the B2 area 22,
2, 3, 7, 8, 9, 13, 14 and 15 are read out and temporarily stored in the RAM 16a (time 0 to 1). RA
The map information stored in M16a is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the map information of the area centered on the point S in FIG. 3 is displayed on the CRT 10 under the control of the CPU 5 (time 2).

The map information displayed on the CRT 10 is within the range shown by the dotted line in FIG. 3 at time 2, but the time can be changed by pressing the scroll key pattern in the key switch group 9 to perform the scroll operation. According to the progress of, the area moves to the area that extends over the map information 8 and 14 (time 2 to 5). When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 3) as the scroll operation progresses (time 3), the map information block in the next map information block is based on the rearrangement recording block management information. The management information is read from the B2 area 22, and based on this map information block management information, M is controlled by the control of the CPU 16b.
The D deck 16 has map information 7, 8, 9, from the B2 area 22.
Read 13, 14, 15, 19, 20 and 21
It is temporarily stored in the RAM 16a (time 3-4).

The map information stored in the RAM 16a is C
The map information is immediately transferred to the RAM 6 in accordance with the transfer command of the PU 5, but at this time, the map information 7, 8, 9, 13, 14 and 15 already transferred to the RAM 6 is not transferred, and the map information newly transferred is the map. Information 19, 20 and 21 only. In this way, the RAM 6, map information 7, 8,
9, 13, 14, 15, 19, 20, and 21 are stored, and the map information is continuously displayed on the CRT 10 (time 5 to 8).

Here, the read operation of the map information shown in FIG. 9A can be performed in a shorter time than the read operation of the map information shown in FIG. 4A. Because,
This is because the map information block is one in which map information to be read by one read operation is collectively recorded in the vicinity of the disk, so that the disk access time can be shortened. Therefore, as long as the data processing capability of the CPU 5 permits, the intervals of reading the map information block (for example, time 1 to 3 and time 4 to 4 in FIG. 9).
6 and the like) to speed up the data transfer to the RAM 6, the time required for the scroll operation can be shortened.

Thereafter, similarly, the map information blocks in the rearrangement recording block are sequentially reproduced, and the map information is displayed on the CRT 10 while scrolling at high speed and smoothly. When the center of the display range of the CRT 10 moves to the boundary between the map information 23 and 29 (time 15), the map information block management information in the next map information block is changed from the B2 area 22 based on the relocation record block management information. MD read out and based on this map information block management information
Under the control of the CPU 16b, the deck 16 reads the map information 16, 17, 18, 22, 23, 24, 2 from the B2 area 22.
8, 29 and 30 are read out and temporarily stored in the RAM 16a (time 15 to 16).

The map information stored in the RAM 16a is C
The map information 1617, 18, 22, 23 and 24, which has already been transferred to the RAM 6, is not transferred at this time although it is immediately transferred to the RAM 6 in accordance with the transfer command of the PU 5.
Only the map information 28, 29 and 30 is newly transferred.

In this way, nine pieces of map information are stored in the RAM 6 and the map information display on the CRT 10 is continued, but the center of the display range of the CRT 10 is the map information 23 and 2.
At time 18 when moving to the boundary of 9, the map information is not read. This is because the map information 29 required to display the map information of the area including the T point is included in the adjacent map information of the map information 23, so that no matter what route is taken to reach the T point, the map information 29 in FIG. ) Time 15-16
This is because it is stored in the RAM 16a by the read operation in step 1 and already transferred to the RAM 6 at time 18.

Hereinafter, the operation of displaying the map information while scrolling on the CRT 10 is continued.
When the center of the display range of T10 moves to the point T, the map information scroll operation ends (time 19), and the reproduction operation of the rearrangement recording block ends.

As described above, during the normal navigation operation, if control is performed such that the map information read out in parallel with the normal navigation operation is recorded in the RAM area of the hybrid MD 17 as a rearrangement recording block, the same route is re-established. On the other hand, in the case where the navigation operation is performed, even if it is necessary to display the map information while performing the scroll operation, the map information blocks in the rearrangement recording block are sequentially read out to quickly and smoothly display on the CRT 10. Map information can be displayed.

In the first embodiment, the rearrangement recording operation is explained to be executed during the normal navigation operation. However, this can be done by pressing the scroll key pattern in the key switch group 9 at the normal speed. It is also possible to control so that it is executed while performing the scroll operation of. In that case, B2 is read at intervals (for example, times 1 to 6 in FIG. 4A) for reading the map information from the A1 area 19.
It is necessary to set the scroll speed so that the operation of recording the map information block in the area 22 can be performed.

In the first embodiment, the CPU 16b is configured to select the adjacent map information.
It may be configured to be performed in U5.

Example 2. In the first embodiment, only the map information is recorded in the B2 area 22 of the hybrid MD 17 used as the information recording medium, but the service information such as the tourist guide information recorded in the A2 area 20 is stored in the B2 area 22 together with the map information.
The data may be recorded in the two areas 22. The block circuit diagram of the second embodiment of the present invention is the same as that of FIG. 1, and the functional operation of each block is almost as described above, and the configuration of the hybrid MD 17 is also the same as that of FIG. Is omitted. The feature of this second embodiment is that
The contents of the information signal to be recorded in the B2 area 22 and the reproduction control method therefor.

The operations up to the normal navigation operation and the location operation are the same as those in the conventional technique, and therefore the description thereof will be omitted. Here, as in the first embodiment,
Assuming a case where the area on the map shown in FIG. 3 passes through the route shown by the solid line in the figure and moves from the S point to the T point, first, the rearrangement record is performed while performing normal navigation operation for this route. The operation when the operation is performed will be described.

The operation timing of the rearrangement recording operation of the second embodiment is also shown in FIG. 4 as in the first embodiment. However, here, FIG. 10A is a timing for reading the map information and service information from the A1 area 19, and FIG.
10 shows the timing of displaying the map information, and FIG. 10C shows the timing of recording the map information and the service information in the B2 area 22. The rearrangement recording operation will be described in detail below with reference to FIG.

First, when the key switch group 9 is designated to perform the rearrangement recording operation for the route for the navigation operation from now on, the current position S is detected by the same method as in the conventional example, and the CPU 5 causes the CPU 16b to re-execute. Send a control command to make a placement record. Based on the control command sent, the CPU 16b causes the MD deck 16 to read the map information 8 including the current position S and the map information adjacent thereto from the A1 area 19, and the service information related to these map information in the A2 area. It is read from the RAM 20 and temporarily stored in the RAM 16a (time 0 to 1). The method of selecting the adjacent map information in the CPU 16b is as follows.
Since it is represented in FIG. 5 as in the first embodiment, the description thereof is omitted.

Of the information stored in the RAM 16a, the map information is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the display of the map information is started on the CRT 10 under the control of the CPU 5 (time 2). Hereinafter, the operation (time 2 to 10) during the movement of the position of the own vehicle and the movement of the map display area to the area spanning the map information 8 and 14 will be described in the first embodiment.
The description is omitted because it is similar to the above.

The MD deck 16 accesses the RAM area of the hybrid MD 17 under the control of the CPU 16b (time 1 to 3), and records the map information and the service information read out and temporarily stored in the RAM 16a in the B2 area 22 as a map information block. At (time 3 to 4), the map information block management information generated by the CPU 16b is included in this map information block. When recording of the map information block is completed at time 4, the MD deck 16 immediately outputs the hybrid MD 17 under the control of the CPU 16b.
Access the ROM area and wait (time 5).

If the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 6) as the position of the vehicle moves, the scrolling operation proceeds (FIG. 5).
As shown in (b), eight pieces of map information of map information 7, 8, 9, 13, 15, 19, 20 and 21 are selected by the CPU 16b as the adjacent map information of the map information 14, and the MD is controlled by the CPU 16b. The deck 16 reads the map information 14 and these eight pieces of adjacent map information, that is, nine pieces of map information from the A1 area 19, reads the service information related to those pieces of map information from the A2 area 20, and once reads them into the RAM 16a. Memorize (time 6-7). Hereinafter, the operation (time 10 to 16) until the map information is transferred to the RAM 6 among the information signals temporarily stored in the RAM 16a and the map information is continuously displayed on the CRT 10 is as follows.
The description is omitted because it is similar to the first embodiment.

During time 10 to 16, MD deck 16
Accesses the RAM area of the hybrid MD 17 under the control of the CPU 16b (time 7 to 8), and records the map information and the service information read out and temporarily stored in the RAM 16a in the B2 area 22 as a map information block (time 8 to 9). ) However, this map information block contains map information block management information. When the recording of the map information block is completed at time 9, the MD deck 16 immediately returns to the R of the hybrid MD 17 under the control of the CPU 16b.
Access the OM area and wait (time 11).

Thereafter, similarly, the rearrangement recording operation is continued in parallel with the normal navigation operation. The map information read from the A1 area 19 at the times 12 to 13, the times 18 to 19, the times 24 to 25, and the times 30 to 31 are shown in FIGS. 5C, 5D, 5E, and 5F, respectively.
It is shown in the part surrounded by the thick line.

Eventually, the scroll operation proceeds, and CR
When the center of the display range of T10 moves to the boundary between the map information 23 and 29 (time 36), the adjacent map information of the map information 29 is selected by the CPU 16b and the time is controlled by the CPU 16b, as shown in FIG. MD which was waiting by accessing the ROM area of the hybrid MD 17 to 35
The deck 16 reads the map information 29 and these eight pieces of adjacent map information, that is, a total of nine pieces of map information from the A1 area 19, reads the service information related to these pieces of map information from the A2 area 20, and once reads them into the RAM 16a. Memorize (time 38-39).

Of the information stored in the RAM 16a, the map information is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, but at this time, the map information 22, 23, 24, 28, which has already been transferred to the RAM 6, 29 and 30 are not transferred, and newly transferred are map information 34 and 35.
And 36 only. In this way, RAM6
The map information of one sheet is stored and the map information display on the CRT 10 is continued, but when the position of the own vehicle moves and stops at the T point, and the center of the display range of the CRT 10 moves to the T point, the map information scrolls. The operation is stopped (time 40).

During this time, the MD deck 16 accesses the RAM area of the hybrid MD 17 (from time 37 onward).
38), the map information and the service information read out and temporarily stored in the RAM 16a as a map information block B
Although it is recorded in the 2 area 22, map information block management information is included in this map information block (time 38).
~ 39). When the scroll operation of the map information is stopped at time 40 and the stop of the rearrangement recording operation is designated by the key switch group 9, the map information block group which has been recorded up to this map is continued by the control of the CPU 16b. The management information regarding the information block group (hereinafter referred to as “relocation recording block management information”) is recorded in the B2 area 22, and the TOC information regarding the rearrangement recording block is recorded in the B1 area 21, and the relocation recording operation ends. To do.

Here, the TOC recorded in the B1 area 21
The configuration of the information and the map information block and the rearrangement recording block recorded in the B2 area will be described in detail. FIG. 10 is a schematic diagram for explaining the map information block recorded in the B2 area, and FIGS. 10A and 10B are examples of the map information block recording format and the map information block management information recording, respectively. This is an example of a format. As shown in FIG.
The map information block is composed of a plurality of map information selected by the CPU 16b during the relocation recording operation, service information related to the map information, and map information block management information. This map information block management information includes
For example, as shown in FIG. 3B, the map information block number, the number of map information forming the map information block, the address information indicating where in the A1 area 19 the map information is recorded, and the map information is B2. Address information indicating which position in the area 22 is recorded, size of map information, address information indicating where in the B2 area 22 service information is recorded, size of service information, and the like are recorded.

Several map information blocks having the format shown in FIG. 10A are recorded, and constitute a rearrangement recording block together with the rearrangement recording block management information. Since the recording format examples of the TOC information recorded in the relocation recording block and the B1 area 21 of the present invention are shown in FIG. 7 and FIG. 8 respectively as in the first embodiment, the relocation recording block management information and the B1 area 21 are shown. TOC recorded in
A description of information will be omitted.

Next, the B2 area 22 is processed by the rearrangement recording operation.
The operation of reproducing the rearranged recording block recorded in (1) will be described. FIG. 11 is a timing chart showing the operation timing of the reproduction operation of the rearranged recording block. 6A shows the timing of reading the map information and service information from the B2 area 22, and FIG.
0 indicates the timing of displaying the map information or the service information. Based on the figure, the operation when reproducing the rearrangement recording block in which the route from the point S to the point T in FIG. 3 is recorded will be described.

First, when the reproduction of the rearranged recording block is designated by the key switch group 9, the CPU 5 causes the C
A control command is sent to the PU 16b to reproduce the rearranged recording block, and the CPU 16b follows the MD according to the control command.
The deck 16 reads the TOC information in the B1 area 21. Based on the read TOC information, the CPU 16b
Under the control of, the MD deck 16 reads the rearranged recording block management information from the B2 area 22.

The rearrangement recording blocks are reproduced based on the rearrangement recording block management information thus read. First, the map information block management information in the first map information block is read from the B2 area 22 based on the rearrangement recording block management information, and the MD deck 16 is controlled by the CPU 16b based on this map information block management information. Map information (here, nine pieces of map information 1, 2, 3, 7, 8, 9, 13, 14 and 15) and service information related to these map information are read from the B2 area 22 and temporarily stored in the RAM 16a. (Time 0 to 1). Of the information stored in the RAM 16a, the map information is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the SRT shown in FIG.
Map information of a region centered on the point is displayed (time 2).

The map information displayed on the CRT 10 is within the range shown by the dotted line in FIG. 3 at the time 2, but the time can be changed by pressing the scroll key pattern in the key switch group 9 to perform the scroll operation. According to the progress of, the map information is moved to an area that covers the map information 8 and 14 (time 2 to 8). Here, a predetermined key of the key switch group 9 is pressed to select the service information display mode (time 3).
Then, the display of map information on the CRT 10 and the scroll operation of map information are temporarily stopped by the control of the CPU 5, and the service information previously stored in the RAM 16a is transferred to the RAM 6 according to the transfer command of the CPU 5, and the CP
Under the control of U5, the display of the service information such as the tourist guide information on the map area displayed on the CRT 10 until time 3, that is, the area extending over the map information 8 and 14 is started.

Here, the CRT is executed between the times 3 and 4 in FIG.
The service information displayed on 10 is already RA at time 3.
Since it is stored in M16a, at time 3, A2 area 20
It is possible to start displaying the service information in a shorter time than in the case where the service information having the same content is read out and displayed on the CRT 10.

When the service information display mode is canceled by pressing a predetermined key of the key switch group 9 (time 4), the map information display on the CRT 10 and the map information scroll operation are restarted.

The display of the map information restarted at time 4 and the progress of the scrolling operation are the same as those in the first embodiment, and the description thereof will be omitted. Scrolling progresses, and C
When the display range of the RT 10 moves to an area that extends over the map information 23 and 29 and the service information display mode is selected again (time 20), the map information display on the CRT 10 and the scroll operation of the map information are temporarily stopped. Along with C
RAM 16a at time 17-18 according to the transfer instruction of PU5
The service information stored in C is transferred to RAM 6 and C
Under the control of the PU 5, the display of the service information such as the tourist guide information on the map area displayed until the time 20 on the CRT 10, that is, the area extending over the map information 23 and 29 is started.

When the service information display mode is released (time 21), the map information display on the CRT 10 and the map information scroll operation are restarted. Below, CRT1
The operation until the center of the display range of 0 moves to the point T and the scroll operation of the map information ends (time 22) is the same as that in the first embodiment, and thus the description thereof is omitted.

Thus, if control is performed so that during normal navigation operation, the map information and service information read in parallel with it are recorded in the RAM area of the hybrid MD 17 as a rearrangement recording block, again. When the navigation operation is performed on the same route, the service information is temporarily displayed when the map information is displayed while scrolling by reading the map information and the service information recorded in the RAM area of the hybrid MD 17. Even when it is necessary to display the service information, the service information can be smoothly displayed on the CRT 10.

In the second embodiment, only the map information is transferred to the RAM 6 among the information signals temporarily stored in the RAM 16a in the rearrangement recording operation, but the service information is also transferred to the RAM 6 at the same time. It is also possible to control so that the service information can be displayed even during the relocation recording operation.

In the second embodiment, the rearrangement recording operation is explained to be executed during the normal navigation operation. However, this can be done by pressing the scroll key pattern in the key switch group 9 at a normal speed. It is also possible to control so that it is executed while performing the scroll operation of. In that case, it is possible to perform an operation of recording the map information block in the B2 area 22 at intervals (for example, times 1 to 6 in FIG. 4A) at which the map information and the service information are read from the ROM area of the hybrid MD 17. , You need to set the scroll speed.

In the second embodiment, the CPU 16b is configured to select adjacent map information.
It may be configured to be performed in U5.

Example 3. In the first embodiment, during the rearrangement recording operation, the map information in which the current position exists along with the movement of the current position of the own vehicle and the eight pieces of adjacent map information thereof are hybrid MD.
Although it is configured to read from the A1 area 19 of 17, the neighboring map information to be read may be selected in consideration of the traveling direction of the own vehicle. The block circuit diagram of the second embodiment of the present invention is the same as that of FIG. 1, and the functional operation of each block is as described above, and the configuration of the hybrid MD 17 used is also the same as that of FIG. Detailed explanation is omitted.

The operations up to the normal navigation operation and the location operation are the same as those in the prior art, and the description thereof will be omitted. Here, as in the first embodiment,
Assuming that the area on the map shown in FIG. 3 moves from the S point to the T point through the route shown by the solid line in the figure,
First, the operation when the rearrangement recording operation is performed while performing the normal navigation operation for this route will be described.

FIG. 12 is a diagram showing the operation timing of the rearrangement recording operation of the third embodiment. FIG. 7A shows the timing of reading the map information from the A1 area 19, and FIG. 9B shows the timing of displaying the map information on the CRT 10.
FIG. 7C shows the timing of recording the map information in the B2 area 22. The rearrangement recording operation will be described in detail below with reference to FIG.

First, when the key switch group 9 is designated to perform the rearrangement recording operation for the route for the navigation operation from now on, the current position S is detected by the same method as in the conventional example, and the CPU 5 rearranges the CPU 16b. Send control commands to record. Based on the control command sent, the CPU 16b causes the MD deck 16 to execute the map information 8 including the current position S and the adjacent map information 1,
2, 3, 7, 9, 13, 14 and 15, or 9 in total
The map information of one sheet is read from the A1 area 19, and the RAM 16
It is temporarily stored in a (time 0 to 1).

FIG. 13 is a schematic diagram for explaining the method of selecting adjacent map information by the CPU 16b of the third embodiment, in which the frames numbered 1 to 36 are the same as the map information in FIG. The portion surrounded by the thick line in FIG. 7A shows the map information selected by the CPU 16b as the adjacent map information of the map information 8 and stored in the RAM 16a during the time 0 to 1. It is a thing. The map information thus stored in the RAM 16a is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the display of the map information is started on the CRT 10 under the control of the CPU 5 (time 2).

Thereafter, the display area of the map information moves to the area extending over the map information 8 and 14 as time passes, and the MD
After the deck 16 records the map information and the map information block management information temporarily stored in the RAM 16a in the B2 area 22 as the map information block, the hybrid M immediately
The operation from accessing the ROM area of D17 to waiting (time 2 to 5) is the same as that in the first embodiment, and therefore its explanation is omitted. The feature of the third embodiment is that the A1 area 19 is displayed when the center of the display range of the CRT 10 moves to the boundary of the map information.
There is a method of selecting the map information newly read from the CPU 16b. In the first embodiment, for example, the adjacent map information of the map information 14 is converted into map information 7, 8, 9, 13, 15, 19,
Although there are 8 sheets of 20 and 21, in the third embodiment, the traveling direction of the own vehicle is taken into consideration at the stage of selecting the adjacent map information.

When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 by moving the position of the own vehicle (time 6), as shown in FIG.
As shown in (b), in consideration of the traveling direction of the own vehicle, the map information 13, 15, 1 is set as the adjacent map information of the map information 14.
8 pieces of map information of 9, 20, 21, 25, 26 and 27 are selected by the CPU 16b, and the MD deck 16 controls the map information 14 and these 8 pieces of adjacent map information, that is, a total of 9 maps by the control of the CPU 16b. Information is read from the A1 area 19 and temporarily stored in the RAM 16a (time 6 to 7). The map information stored in the RAM 16a is CP
It is immediately transferred to the RAM 6 according to the transfer command of U5, but at this time, the map information 13, 14, 15 already transferred to the RAM 6 is not transferred, and the newly transferred map information 19, 20, 21 is , 25, 26 and 27. In this way, the RAM 6 stores the map information 13, 14,
15, 19, 20, 21, 25, 26 and 27 are stored and the map information is continuously displayed on the CRT 10 (time 10 to 16).

During this time, the MD deck 16 is the CPU
Under the control of 16b, the RAM area of the hybrid MD 17 is accessed (time 7 to 8), and the RAM is read and read previously.
The map information temporarily stored in 16a is recorded in the B2 area 22 as a map information block (time 8-9), and the map information block management information is included in this map information block. When the recording of the map information block is completed at time 9, the MD deck 16 immediately accesses the ROM area of the hybrid MD 17 and waits under the control of the CPU 16b (time 11).

Thereafter, similarly, the rearrangement recording operation is continued in parallel with the normal navigation operation. The map information read from the A1 area 19 at times 12, 18 and 24 is (c) and (d) of FIG. 13, respectively.
And (e) are shown in a portion surrounded by a thick line.

Here, unlike the first embodiment, even if the center of the display range of the CRT 10 moves to the boundary between the map information 22 and 23 (time 30) due to the progress of the scroll operation, the map information from the A1 area 19 is displayed. Is not read. this is,
As shown in FIG. 13E, the map information 24, which is the adjacent map information of the map information 23 with respect to the traveling direction of the own vehicle, does not change in the traveling direction at time 30,
This is because the data is already stored in the RAM 16a by the read operation at times 24 to 25 in (a). As described above, in the third embodiment, even if the scroll operation proceeds and the center of the display range of the CRT 10 moves to the boundary of the map information, the adjacent map information in the traveling direction of the vehicle is stored in the RAM.
If it is stored in 16a, the CPU 16b does not read the map information.

Eventually, the scroll operation progresses, and CR
When the center of the display range of T10 moves to the boundary between the map information 23 and 29 (time 31), the CPU 16b selects the map information of the area indicated by the thick line and the dotted line in FIG. 13 (f) as the adjacent map information of the map information 29. And CPU16b
ROM of hybrid MD17 at time 29 by control of
The MD deck 16 that has accessed the area and is on standby reads the map information 29 and these eight pieces of adjacent map information, that is, a total of nine pieces of map information from the A1 area 19 and reads the RAM1.
6a is temporarily stored (time 31 to 32). RAM16a
The map information stored in the
Immediately transferred to RAM6, but at this time, already RA
The map information 28, 29, 30 that has already been transferred to M6 is not transferred, and the newly transferred map information 34, 35, 3
6 and three pieces of map information indicated by dotted lines in FIG. 13 (f). In this way, nine pieces of map information are temporarily stored in the RAM 6 and the map information display on the CRT 10 is continued, but the position of the own vehicle moves and stops at the T point, and the CRT 1
When the center of the display range of 0 moves to point T, the map information scroll operation stops (time 35).

During this time, the MD deck 16 accesses the RAM area of the hybrid MD 17 (from time 32 onward).
33), the map information previously read out and temporarily stored in the RAM 16a is recorded in the B2 area 22 as a map information block, and this map information block includes map information block management information (time 33 to 34). . Time 40
When the scroll operation of the map information is stopped and the stop of the rearrangement recording operation is designated by the key switch group 9, the CPU 16b controls the map information block group that has been recorded so far to be displayed, as in the first embodiment. Subsequently, the management information on the map information block group (hereinafter referred to as “relocation recording block management information”) is recorded in the B2 area 22, and the TOC information on the rearrangement recording block is recorded in the B1 area 21. The arrangement recording operation ends.

Here, the map information block of the third embodiment,
T recorded in the relocation recording block and the B1 area 21
The recording format of the OC information is shown in FIGS. 6, 7 and 8 respectively, as in the first embodiment, and the description thereof will be omitted.

Next, the B2 area 22 is processed by the rearrangement recording operation.
The operation of reproducing the rearranged recording block recorded in (1) will be described. FIG. 14 is a timing chart showing the operation timing of the reproducing operation of the rearrangement recording block of the third embodiment. The figure (a) shows the timing which reads map information from A1 area | region 19, and the figure (b) shows the timing which displays map information on CRT10. Based on the figure, the operation when reproducing the rearrangement recording block in which the route from the point S to the point T in FIG. 3 is recorded will be described.

First, when the reproduction of the rearranged recording block is designated by the key switch group 9, the CPU 5 causes the C
A control command is sent to the PU 16b to reproduce the rearranged recording block, and the CPU 16b follows the MD according to the control command.
The deck 16 reads the TOC information in the B1 area 21. Based on the read TOC information, the CPU 16b
Under the control of, the MD deck 16 reads the rearranged recording block management information from the B2 area 22.

Thereafter, the rearrangement recording block is reproduced based on the rearrangement recording block management information, and the map information of the area centered on the point S of FIG. 3 is displayed on the CRT 10 at the time 2 under the control of the CPU 5. The operation up to that is the same as that of the first embodiment, and thus the description thereof is omitted.

The map information displayed on the CRT 10 is within the range shown by the dotted line in FIG. 3 at time 1, but the time can be changed by pressing the scroll key pattern in the key switch group 9 to perform the scroll operation. According to the progress of, the area moves to the area that extends over the map information 8 and 14 (time 2 to 5). When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 3) as the scroll operation progresses (time 3), the map information block in the next map information block is based on the rearrangement recording block management information. The management information is read from the B2 area 22, and based on this map information block management information, M is controlled by the control of the CPU 16b.
The D deck 16 has map information (here, map information 13, 14, 15, 19, 20, 21, 25, 2) from the B2 area 22.
9 sheets of 6 and 27) are read out and temporarily stored in the RAM 16a (time 3 to 4).

The map information stored in the RAM 16a is C
The map information is immediately transferred to the RAM 6 according to the transfer instruction of the PU 5, but at this time, the map information 13, 14, 15 already transferred to the RAM 6 is not transferred, and the newly transferred map information 19, 20, 21 is. , 25, 26 and 27. In this way, the RAM 6 stores the map information 13, 14,
15, 19, 20, 21, 25, 26, and 27 are temporarily stored, and the map information is continuously displayed on the CRT 10 (time 5 to 8).

Here, the read operation of the map information shown in FIG. 14A can be performed in a shorter time than the read operation of the map information shown in FIG. 12A. because,
This is because, as shown in FIG. 6, the map information block is one in which map information to be read at one time is collectively recorded in the vicinity of the disk, so that the disk access time can be shortened. Therefore, as long as the data processing capacity of the CPU 5 permits, the intervals of reading the map information block (for example, time 1 to 3 and time 4 to 4 in FIG. 14).
6. ． ． ) To speed up data transfer to the RAM 6, the time required for the scroll operation can be shortened.

Thereafter, similarly, the map information blocks in the rearrangement recording block are sequentially reproduced, and the map information is displayed on the CRT 10 while scrolling at high speed and smoothly. When the center of the display range of the CRT 10 moves to the boundary between the map information 21 and 23 (time 12), the map information block management information in the next map information block is changed from the B2 area 22 based on the rearrangement recording block management information. MD read out and based on this map information block management information
Under the control of the CPU 16b, the deck 16 reads the map information 16, 17, 18, 22, 23, 24, 2 from the B2 area 22.
8, 29 and 30 are read out and temporarily stored in the RAM 16a (time 12 to 13).

The map information stored in the RAM 16a is C
According to the transfer command of the PU 5, the data is immediately transferred to the RAM 6, but at this time, the map information 22, 28 already transferred to the RAM 6 is not transferred, and the newly transferred map information 16, 17, 18, 23, 24, 29 and 30.

In this way, the map information 1 is stored in the RAM 6.
6, 17, 18, 22, 23, 24, 28, 29 and 30 are stored and the map information display on the CRT 10 is continued, but the center of the display range of the CRT 10 is the map information 22.
The map information is not read at the time 15 when moving to the boundary between 23 and 29 and the time 16 when moving to the boundary between the map information 23 and 29. This is because the map information 23 and 29 necessary for displaying the map information of the area including the route to the point T are stored in the RAM 16a by the reading operation at the times 12 to 13 in FIG. This is because it has been transferred to the RAM 6.

Hereinafter, the operation of displaying map information while scrolling on the CRT 10 is continued.
When the center of the display range of T10 moves to point T, the map information scrolling operation ends (time 17), and the relocation recording block reproducing operation ends.

As described above, during the normal navigation operation, the map information read in the RAM area of the hybrid MD 17 is recorded as a rearrangement recording block in parallel with it, and the map information to be read out from the ROM area is selected. By controlling so as to consider the traveling direction of the own vehicle, the number of operations of recording the map information read in the RAM area of the hybrid MD 17 and the number of operations of reading the map information recorded in the RAM area of the hybrid MD 17 can be reduced. Even if it is necessary to display the map information while performing the scroll operation when the navigation operation is performed again on the same route, high speed is achieved by sequentially reading the map information blocks in the relocation recording block. Moreover, the map information can be smoothly displayed on the CRT 10. .

In the third embodiment, the rearrangement recording operation is explained to be executed during the normal navigation operation, but this is performed by pressing the scroll key pattern in the key switch group 9 and performing the map at the normal speed. It is also possible to control the execution while scrolling the information. In that case, the scroll speed is set so that the operation of recording the map information block in the RAM area of the hybrid MD 17 can be performed in the interval of reading the map information from the B2 area 22 (for example, time 1 to 6 in FIG. 12A). Need to be set.

In the third embodiment, the adjacent map information is selected by the CPU 16b.
It may be configured to be performed in U5.

Example 4. In the first embodiment, all the adjacent map information selected by the CPU 16b at the time of relocation recording is RA.
Although it is controlled to be stored in the M16a, it is controlled so that the once read map information is not read in the next read operation, and the map information is prevented from being redundantly recorded in the B2 area. You may. The block circuit diagram of the fourth embodiment is the same as that in FIG. 1, and the functional operation of each block is as described above, and the configuration of the hybrid MD 17 used is also the same as that in FIG.
Detailed explanation is omitted.

The operations up to the normal navigation operation and the location operation are the same as those in the conventional technique, and therefore the description thereof will be omitted. Here, as in the case of the first embodiment, assuming that the area on the map shown in FIG. 3 moves from the point S to the point T through the route shown by the solid line in the figure, first, regarding this route, The operation when performing the relocation recording operation while performing the navigation operation will be described.

The operation timing of the rearrangement recording operation of the fourth embodiment is also shown in FIG. 4 as in the first embodiment. Below, FIG.
Based on this, the relocation recording operation will be described in detail.

First, when the key switch group 9 is designated to perform the rearrangement recording operation for the route for the navigation operation from now on, the current position S is detected by the same method as in the conventional example, and the CPU 5 rearranges the CPU 16b. Send control commands to record. Based on the control command sent, the CPU 16b causes the MD deck 16 to send the map information 8 including the current position S and its adjacent map information 1, 2, 3, 7, 9, 13, 14 and 15, that is, a total of 9 sheets. The map information is read from the A1 area 19, and the RAM
It is temporarily stored in 16a (time 0 to 1).

FIG. 15 is a schematic diagram for explaining the method of selecting the adjacent map information by the CPU 16b of the fourth embodiment, in which the frames numbered 1 to 36 are the same as the map information in FIG. The portion surrounded by the thick line in FIG. 7A shows the map information selected by the CPU 16b as the adjacent map information of the map information 8 and stored in the RAM 16a during the time 0 to 1. It is a thing. The map information thus stored in the RAM 16a is immediately transferred to the RAM 6 according to the transfer command of the CPU 5, and the display of the map information is started on the CRT 10 under the control of the CPU 5 (time 2). Hereinafter, since the recording of the map information block ends at time 4, the operation until the MD deck 16 accesses the ROM area of the hybrid MD 17 and waits (time 5) under the control of the CPU 16b is the same as that in the first embodiment. The description is omitted.

When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 6) as the position of the vehicle moves, the scrolling operation progresses (time 6). Information 7, 8, 9, 13,
15, 19, 20 and 21 are selected by the CPU 16b. However, since the map information 7, 8, 9, 13, 14 and 15 has already been recorded in the B2 area 22 by the rearrangement recording operation at times 3 to 4, the MD deck 16 controls the map information 19, 20 by the control of the CPU 16b. Only and 21 are read from the A1 area 19 and temporarily stored in the RAM 16a (time 6 to 7).

That is, as shown in FIG. 15B, at time 6, the map information 1 is added as the adjacent map information of the map information 14.
Equivalent to 9, 20, and 21 being elected. In order for the CPU 16b to recognize that the map information 7, 8, 9, 13, 14 and 15 has already been recorded in the B2 area 22, the map information block management information recorded in the B2 area 22 at times 3 to 4 is used by the CPU 16b. Memorized inside
This may be referred to when selecting the adjacent map information at time 6. The recording formats of the map information block, the rearrangement recording block, and the TOC information recorded in the B1 area 21 of the fourth embodiment are the same as those in the first embodiment shown in FIGS. 6, 7, and 8, respectively. The description is omitted.

The map information stored in the RAM 16a is C
All are immediately transferred to the RAM 6 according to the transfer instruction of the PU 5. In this way, after all, RA is the same as in the first embodiment.
Map information 7, 8, 9, 13, 14, 15, 19, M6
20 and 21 are stored, and the map information is continuously displayed on the CRT 10 (time 10 to 16).

During this time, the MD deck 16 is
Under the control of 16b, the RAM area of the hybrid MD 17 is accessed (time 7 to 8), and the RAM is read and read previously.
The map information 19, 20 and 21 temporarily stored in 16a is recorded as a map information block in the B2 area 22 (time 8-9), but this map information block includes map information block management information. This map information block management information is also stored inside the CPU 16b. Time 9
When the recording of the map information block is finished, the CPU 16b
MD deck 16 is immediately a hybrid MD under the control of
Access the ROM area of 17 and wait (time 1
1).

Thereafter, the rearrangement recording operation is continued in parallel with the normal navigation operation in the same manner. The map information read from the A1 area 19 at the times 12 to 13, the times 18 to 19, the times 24 to 25, and the times 30 to 31 are shown in FIGS. 15C, 15D, 15E, and 15F, respectively. It is shown in the part surrounded by the thick line.

Eventually, the scroll operation proceeds, and CR
When the center of the display range of T10 moves to the boundary between the map information 23 and 29 (time 36), the map information 22, 23, 24, 28, 30, 34 is displayed as the adjacent map information of the map information 29.
35 and 36 are selected by the CPU 16b. However, the map information 22 is time 14 to 15, the map information 28 is time 20 to 21, and the map information 23 and 29 are time 26 to 2.
7. Since the map information 24 and 30 are already recorded in the B2 area 22 by the rearrangement recording operation at the times 32 to 33, respectively, the time information 35 and the time 35 are controlled by the CPU 16b.
The MD deck 16 that was waiting by accessing the ROM area of the hybrid MD 17 as shown in FIG. 15 (g) only stores the map information 34, 35 and 36 in the A1 area 19
And stores it in the RAM 16a once (time 38
~ 39). CP that map information 22, 23, 24, 28, 29 and 30 has already been recorded in the B2 area 22
In order for the U16b to recognize, all the map information block management information recorded from time 3 to 33 may be stored in the CPU 16b and referred to when the adjacent map information is selected at time 36.

All the map information stored in the RAM 16a at the times 36 to 37 is immediately transferred to the RAM 6 according to the transfer command of the CPU 5. In this way, RAM6
Map information 22, 23, 24, 28, 29, 30, 3
4, 35 and 36 are stored and the map information display on the CRT 10 is continued, but when the position of the own vehicle moves and stops at the T point and the center of the display range of the CRT 10 moves to the T point, the map information is displayed. Scroll operation stops (time 4
0).

During this time, the MD deck 16 accesses the RAM area of the hybrid MD 17 (from time 37 onward).
38), the map information 34, 35, and 36 that has been read out and temporarily stored in the RAM 16a is recorded in the B2 area 22 as a map information block (time 38 to 39), but the map information block management information is included in this map information block. Is included, and this map information block management information is stored in the CPU1.
It is also stored inside 6b.

When the scroll operation of the map information is stopped at time 40 and the stop of the rearrangement recording operation is designated by the key switch group 9, the CPU 16b controls the operation to continue the map information block group recorded so far. The management information on the map information block group (hereinafter referred to as "relocation recording block management information") is recorded in the B2 area 22, and the TOC information on the relocation recording block is B1.
The data is recorded in the area 21, and the rearrangement recording operation ends.

Next, the B2 area 22 is processed by the relocation recording operation.
The operation of reproducing the rearranged recording block recorded in (1) will be described. The operation timing of the reproduction operation of the rearranged recording block of the fourth embodiment is shown in FIG. 9 as in the first embodiment. However, here, FIG. 11A shows the timing of reading the map information from the A1 area 19, and FIG.
The timing at which the map information is displayed on the RT 10 is shown. Based on the figure, the operation when reproducing the rearrangement recording block in which the route from the point S to the point T in FIG. 3 is recorded will be described.

First, after the reproduction of the rearranged recording block is designated by the key switch group 9, the display of the map information of the area centered on the point S in FIG. 3 is started on the CRT 10 at the time 2 by the control of the CPU 5. The operation up to
The description is omitted because it is the same as. The map information displayed on the CRT 10 is in the range shown by the dotted line in FIG. 3 at time 1, but by pressing the scroll key pattern in the key switch group 9 to perform the scroll operation, It moves to the area | region which straddles map information 8 and 14 (time 2-5).

When the center of the display range of the CRT 10 moves to the boundary between the map information 8 and 14 (time 3) as the scrolling operation progresses (time 3), based on the rearrangement recording block management information, the next map information block The map information block management information is read from the B2 area 22, and based on this map information block management information, M is controlled by the control of the CPU 16b.
The D deck 16 has map information 19, 20 from the B2 area 22,
21 is read and temporarily stored in the RAM 16a (time 3
~ 4). The map information stored in the RAM 16a is stored in the CPU
All are immediately transferred to the RAM 6 according to the transfer command of No. 5. In this way, the RAM 6, map information 7, 8,
9, 13, 14, 15, 19, 20, 21 are stored,
Map information continues to be displayed on the CRT 10 (time 5
~ 8).

Thereafter, similarly, the map information blocks in the rearrangement recording block are sequentially reproduced, and the map information is displayed on the CRT 10 while scrolling at high speed and smoothly. When the center of the display range of the CRT 10 moves to the boundary between the map information 23 and 29 (time 15), the map information block management information in the next map information block is changed from the B2 area 22 based on the relocation record block management information. MD read out and based on this map information block management information
The deck 16 reads the map information 18, 24 and 30 from the B2 area 22 under the control of the CPU 16b, and once
It is stored in M16a (time 15 to 16). RAM16a
The map information stored in the
All are immediately transferred to the RAM 6.

In this way, the map information 1 is stored in the RAM 6.
6, 17, 18, 22, 23, 24, 28, 29 and 30 are temporarily stored and the map information display on the CRT 10 is continued, but the center of the display range of the CRT 10 is the map information 2
At time 18 when moving to the boundary between 3 and 29, the map information is not read out for the same reason as in the first embodiment.

Hereinafter, the operation of displaying the map information while scrolling on the CRT 10 is continued.
When the center of the display range of T10 moves to the point T, the map information scroll operation ends (time 19), and the reproduction operation of the rearrangement recording block ends.

As described above, during the normal navigation operation, the map information read out to the RAM area of the hybrid MD 17 is recorded as the rearrangement recording block in parallel with the normal navigation operation, and the map information block management information is referred to. If control is performed so as to avoid duplicate recording of map information, even if it is necessary to display map information while scrolling when performing navigation operations on the same route again, High-speed and smooth CR by sequentially reading out map information blocks
Map information can be displayed on T10, and
The map information can be efficiently recorded in the B2 area 22.

In the fourth embodiment, the map information block management information is stored in the CPU 16b, but the map information block management information is stored in the RAM 16a.
It may be configured to be stored in, and to be read and referred to when the adjacent map information is selected.

In the fourth embodiment, the control is performed so that the map information is not redundantly read from the A1 area 19 during the rearrangement recording operation. However, the read operation is performed in the same manner as in the first embodiment. The map information that has already been recorded in the B2 area 22 during the recording operation may be controlled not to be redundantly recorded. In that case, the CPU 5 to the CPU 16b are controlled to record only the map information instructed to be transferred from the RAM 16a to the RAM 6 in the B2 area.

In the fourth embodiment, the rearrangement recording operation is explained to be executed during the normal navigation operation. However, this can be done by pressing the scroll key pattern in the key switch group 9 to move the map information at the normal speed. It is also possible to control so that it is executed while performing the scroll operation of. In that case, the scroll speed is set so that the operation of recording the map information block in the RAM area of the hybrid MD 17 can be performed in the interval of reading the map information from the B2 area 22 (for example, time 1 to 6 in FIG. 4A). Need to be set.

In the fourth embodiment, the adjacent map information is selected by the CPU 16b.
It may be configured to be performed in U5.

Example 5. In Examples 1, 2, 3 and 4, the system was configured using the hybrid MD 17 as an information recording medium, but this was used as a map information information recording medium using a read-only medium such as a CD-ROM and rearrangement recording. The system may be configured by using a recordable / reproducible medium such as an erasable type MD as a block recording / reproducing medium.

FIG. 16 is a block circuit diagram of a mobile navigation information signal recording / reproducing apparatus according to Embodiment 5 of the present invention. In the figure, 1 to 18 are the same as those in the first embodiment shown in FIG. 1, and the CD deck 23 and the CD-ROM 24 are the same as those in the conventional example shown in FIG. Since the function is almost the same as described above, detailed description will be omitted. 25 is an erasable type MD (hereinafter referred to as "MD-RAM").

Next, the operation will be described with reference to FIG.
The operation of the CD deck 23 is controlled by the CPU 5 via the fourth interface circuit 18. Hereinafter, the operation of reading the map information from the CD-ROM 24, which is the map storage means, and performing the normal navigation operation and the location operation is the same as the conventional technique, and therefore the description thereof is omitted.

In the rearrangement recording operation of the fifth embodiment, the CD-
The map information is read from the ROM 24 and temporarily stored in the RAM 16a.
In the MD-RAM 25. The operation timing is shown in FIG. 4 as in the first embodiment. Here, FIG. 4A shows the timing of reading the map information from the CD-ROM 24, and FIG. 4B shows the display of the map information on the CRT 10. Represents the timing to perform, and FIG.
Represents the timing of recording the map information in the MD-RAM 25. Hereinafter, detailed description of the relocation recording operation will be omitted.

In the reproducing operation of the rearrangement recording block of the fifth embodiment, the MD is based on the TOC information recorded in the TOC area of the MD-RAM 25 and the management information recorded in the data recording area of the MD-RAM 25. -RAM2
The rearrangement recording block recorded in No. 5 is reproduced. The operation timing is also shown in FIG. 9 as in the first embodiment. Here, FIG. 9A shows the timing of reading the map information from the MD-RAM 25, and FIG.
It represents the timing of displaying the map information on T10. The same applies to the rearrangement recording block reproducing operation, so detailed description will be omitted.

Example 6. In the first, second, third, and fourth embodiments, the hybrid MD 17 in which the rearrangement recording block is recorded by the rearrangement recording operation is configured to be reproduced by the MD deck 16 having the recording / reproducing function.
The D deck 16 may be exclusively used for reproduction, so that the information recording medium in which the rearrangement recording blocks are recorded in advance may be reproduced. A block circuit diagram of Embodiment 6 of the present invention is shown in FIG. 1. In this case, an information recording medium M
The D17 need not be a hybrid type or an erasable type, and may be a reproduction only type. Since the operation timing of the reproduction operation of the rearrangement recording block of this embodiment is also shown in FIG. 9 as in the first embodiment, its explanation is omitted.

[0152]

Since the present invention is constructed as described above, it has the following effects.

According to the first, second, third and fourth aspects of the present invention, the map information recorded in a predetermined format in the recordable area of the information recording medium having the reproduction-only area and the recordable / reproducible area is the management information. By playing back based on this, map information is smoothly CR while performing high-speed scrolling operation.
There is an effect that it can be displayed on the information display means such as T.

According to the second aspect of the present invention, the map information and the service information recorded in a predetermined format in the recordable area of the information recording medium having the read-only area and the recordable / reproducible area are the management information. By displaying the map information on the information display means such as a CRT while scrolling the map information, the service information such as the tourist guide information on the map area being displayed is interrupted. Even if the display is instructed, the display of the service information can be started quickly.

According to the third aspect of the present invention, the map information is read from the read-only area of the information recording medium having the read-only area and the recordable / reproducible area and recorded on the information recording medium in a predetermined recording format. It is possible to reduce the number of operations for recording in a possible area and for reading the map information when the map information is displayed while being scrolled on the information display means such as a CRT.

According to the fourth aspect of the present invention, the map information is recorded in the recordable / reproducible area of the information recording medium having the reproduction-only area and the recordable / reproducible area without duplication, thereby recording / reproducing. The effect is that the possible area can be used effectively.

Further, according to the invention of claim 5, as in the inventions of claims 1, 2, 3 and 4, the map information recorded in a predetermined format including the management information is recorded on the recordable and reproducible information recording medium. By reproducing based on the management information, the map information is smoothly CR while scrolling at high speed.
There is an effect that it can be displayed on the information display means such as T.

Further, according to the invention of claim 6, as in the inventions of claims 1, 2, 3 and 4, the map information recorded in advance on the information recording medium in a predetermined format including management information,
By reproducing based on the management information, there is an effect that the map information can be smoothly displayed on the information display means such as the CRT while performing the scroll operation at high speed.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a configuration of a disk recording / reproducing apparatus for a mobile body according to embodiments 1, 2, 3, 4 and 6 of the present invention.

FIG. 2 is a schematic diagram showing a configuration of a hybrid MD 17 of a disk recording / reproducing device for a moving body according to Examples 1, 2, 3 and 4.

3 is a hybrid MD of Examples 1, 2, 3 and 4. FIG.
It is a schematic diagram for demonstrating the map information currently recorded on A1 area | region 19 of 17.

FIG. 4 is a diagram showing an operation timing of a rearrangement recording operation of the movable body disk recording / reproducing apparatus according to Examples 1, 2 and 4.

FIG. 5 is a schematic diagram for explaining the operation of selecting adjacent map information by the CPU 16b of the disk recording / reproducing device for a mobile object according to the first and second embodiments.

FIG. 6 is a B2 area 22 of the hybrid MD 17 of the disk recording / reproducing apparatus for a moving body according to Examples 1, 3 and 4.
It is a schematic diagram showing the structure of the map information block recorded in FIG.

FIG. 7 is a schematic diagram showing a configuration of a rearrangement recording block recorded in a B2 area 22 of the hybrid MD 17 in the moving body disk recording / reproducing apparatus according to Examples 1, 2, 3 and 4.

FIG. 8 shows a structure of TOC information recorded in a B1 area 21 of a hybrid MD 17 and a rearrangement recording block recorded in a B2 area 22 of a disk recording / reproducing apparatus for a mobile body according to Examples 1, 2, 3 and 4. It is a schematic diagram showing.

FIG. 9 is a diagram showing an operation timing of a reproducing operation of a rearrangement recording block in the moving body disk recording / reproducing apparatus according to Examples 1, 4, and 6;

FIG. 10 is a schematic diagram showing a configuration of a map information block recorded in a B2 area 22 of the hybrid MD 17 in the moving body disk recording / reproducing apparatus according to the second embodiment.

FIG. 11 is a diagram showing the operation timing of the reproduction operation of the rearranged recording block of the moving disk recording / reproducing apparatus according to the second embodiment.

FIG. 12 is a diagram showing the operation timing of a rearrangement recording operation of the moving body disk recording / reproducing apparatus in Example 3;

FIG. 13 is a schematic diagram for explaining the operation of selecting adjacent map information by the CPU 16b of the mobile-body disk recording / reproducing apparatus according to the third embodiment.

FIG. 14 is a diagram showing an operation timing of a reproducing operation of a rearrangement recording block of a moving body disk recording / reproducing apparatus according to a third embodiment.

FIG. 15 is a schematic diagram for explaining the operation of selecting adjacent map information by the CPU 16b of the disk recording / reproducing device for a mobile object according to the fourth embodiment.

FIG. 16 is a block circuit diagram showing the configuration of a disk recording / reproducing apparatus for a mobile body according to Embodiment 5 of the present invention.

FIG. 17 is a block circuit diagram showing the configuration of a conventional disk recording / reproducing device for a mobile body using a CD-ROM.

FIG. 18 is a schematic diagram showing a flow of a signal reproduced from a disc of a conventional disc recording / reproducing device for a mobile body.

FIG. 19 is a diagram showing a relationship between a memory table and a map screen.

FIG. 20 is a diagram showing a current traveling locus and a past traveling locus of an automobile.

[Explanation of symbols]

 1 Control Unit 2 First Interface Circuit 3 Second Interface Circuit 4 Third Interface Circuit 5 CPU 6 Temporary Storage RAM 7 CRT Controller 8 Display RAM 9 Key Switch Group 10 CRT 11 GPS Device 12 Direction Sensor 13 Distance Sensor 16 MD deck 16a RAM 16b CPU 17 Hybrid MD 18 Fourth interface circuit 19 A1 area 20 A2 area 21 B1 area 22 B2 area 23 CD deck 24 CD-ROM 25 MD-RAM

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location G11B 20/12 9295-5D (72) Inventor Sadanobu Ishida No. 1 Nagaokakyo Baba Institute, Mitsubishi Electric Corporation (72) Inventor Takayuki Horino 2-5-1 Inadera, Amagasaki City Mitsubishi Electric Microcomputer Equipment Software Co., Ltd. (72) Inventor Tadayoshi Sakamoto 2-5-1 Inadera, Amagasaki Mitsubishi Denki Computer Software Co., Ltd.

Claims (6)

[Claims] 1. An information signal recording / reproducing apparatus for recording / reproducing various information signals necessary for navigation of a mobile body on an information recording medium such as a disc, the information having both a reproduction-only area and a recordable / reproducible area. Recording / reproducing means for recording / reproducing an information signal using a recording medium, storage means for storing the information signal reproduced from the information recording medium, and display designation of map information to be displayed on the current position of the mobile body or the information display means. Display means for displaying the map information displayed on the current position of the moving body or the information display means, the control information generating means selects and reproduces the map information from the information recording medium based on the means, and generates management information on the selected map information. The map information is selected and reproduced from the reproduction-only area of the information recording medium based on the designation means, and the map information is temporarily stored in the storage means. The map information stored in the column is recorded in a recordable area of the information recording medium in a predetermined format including the management information, and when reproduction of the map information recorded in the predetermined format is designated, the management is performed. A disk recording / reproducing apparatus for a mobile body, wherein the recording / reproducing means is controlled by the control means so as to reproduce the map information based on information. 2. An information signal recording / reproducing apparatus for recording / reproducing various information signals required for navigation of a mobile body on an information recording medium such as a disc, the information having both a reproduction-only area and a recordable / reproducible area. Recording / reproducing means for recording / reproducing an information signal using a recording medium, storage means for storing the information signal reproduced from the information recording medium, and display designation of map information to be displayed on the current position of the mobile body or the information display means. And a control means for selecting and reproducing map information and service information related to the map information from the information recording medium based on the means, and generating management information on the selected map information and service information. The map information and the related information are read from the reproduction-only area of the information recording medium based on the display designation means of the position or the map information displayed on the information display means. Service information to be selected and reproduced, the map information and the service information are temporarily stored in the storage unit, and the map information and the service information stored in the storage unit are stored in the recordable area of the information recording medium. Is recorded in a predetermined format, and when the reproduction of the map information recorded in the predetermined format is designated, the map information is reproduced based on the management information, and the predetermined information is reproduced during the reproduction of the map information. When reproduction of service information recorded in a format is designated, reproduction of the map information is interrupted and the service information is reproduced based on the management information,
A disk recording / reproducing apparatus for a mobile body, wherein the recording / reproducing means is controlled by the control means so as to restart the reproduction of the map information based on the management information when reproduction of the service information is canceled. . 3. An information signal recording / reproducing apparatus for recording / reproducing various information signals required for navigation of a mobile body on an information recording medium such as a disc, the information having both a reproduction-only area and a recordable / reproducible area. Recording / reproducing means for recording / reproducing an information signal using a recording medium, storage means for storing the information signal reproduced from the information recording medium, and current position and traveling direction of the moving body or map information displayed on the information display means. Display designation means and control means for selecting and reproducing map information from the information recording medium based on the moving direction of the display area designated by the display designating means, and generating management information relating to the selected map information. A display position specifying means for displaying the current position and traveling direction of the moving body or the information display means and a table specified by the display specifying means. The map information is selected and reproduced from the reproduction-only area of the information recording medium based on the moving direction of the display area, the map information is temporarily stored in the storage means, and the map information stored in the storage means is used as the information. If the map information recorded in the recordable area of the recording medium in the predetermined format including the management information and the reproduction of the map information recorded in the predetermined format including the management information is designated, the map is based on the management information. A disk recording / reproducing apparatus for a mobile body, wherein the recording / reproducing means is controlled by the control means so as to reproduce information. 4. An information signal recording / reproducing apparatus for recording / reproducing various information signals necessary for navigation of a mobile body on an information recording medium such as a disc, the information having both a reproduction-only area and a recordable / reproducible area. Recording / reproducing means for recording / reproducing an information signal using a recording medium, storage means for storing the information signal reproduced from the information recording medium, and display designation of map information to be displayed on the current position of the mobile body or the information display means. Control for selecting the map information based on the means, referring to the management information related to the map information selected in the past, further selecting the map information and reproducing it from the information recording medium, and generating the management information related to the selected map information. Means for selecting the map information based on the current position of the mobile body or display indication means of the map information to be displayed on the information display means, and the map information is selected in the past. The selected map information is further selected by referring to the management information relating to the map information recorded in the recordable area of the recording medium, reproduced from the reproduction-only area of the information recording medium, and the map information is temporarily stored. The map information stored in the storage means and stored in the storage means in a recordable area of the information recording medium in a predetermined format including the management information, and the map information recorded in the predetermined format including the management information. When the reproduction is designated, the recording / reproducing means is controlled by the control means so as to reproduce the map information based on the management information. 5. A current position of a moving body, comprising a reproducing means for reproducing an information signal by using a first information recording medium and a recording / reproducing means for recording and reproducing an information signal by using a second information recording medium. Alternatively, an information signal such as map information is selected and reproduced from the first information recording medium based on the display designating means of the map information displayed on the information display means, the information signal is temporarily stored in the storage means, and The information signal stored in the storage means is recorded on the second information recording medium in a predetermined format including the management information, and reproduction of the information signal recorded in the second information recording medium in a predetermined format is designated. 5. The reproducing means and the recording / reproducing means are controlled by the control means so as to reproduce the information signal on the basis of the management information in the case of occurrence. Move Body disc recording / playback device. 6. An information signal reproducing device for reproducing an information recording medium such as a disc recorded by the disc recording / reproducing device for a moving object according to claim 1, 2, 3 or 4. Reproduction means for reproducing an information signal such as map information using a medium, and control for controlling an information signal prerecorded in a predetermined format including the management information on the information recording medium based on the management information. Means for controlling the reproducing means to reproduce the information signal from the information recording medium based on the management information when reproduction of the information signal recorded in the predetermined format is designated. A disc reproducing apparatus for a mobile body, characterized in that